{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Anatomy"], "input": "Concentrations of As metabolites in urine were measured with an Agilent 1100 HPLC system ( Agilent Technologies , Waldbronn , Germany ) , coupled with hydride generation ( HG ) inductively coupled plasma mass spectrometry ( ICPMS ) ( Agilent 7500ce series ; Agilent Technologies , Japan ) ."}
{"Anatomy": ["urine", "plasma"]}